User Manual

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Operator’s Manual • Technical Information
– A1.16 – 6076.0822.12.02
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When frequencies outside the frequency range of 225 to 400 MHz or communication mode
LINK 11, UHF Power Amplifier VD 480L will be bypassed.
The following CBIT messages relating to UHF Amplifier VD 480L may occur:
q 601: IF CBIT OF EXT AMP
q 602: IF VSWR OF EXT AMP
Make sure that in UHF Power Amplifier VD 480L the jumpers for connector X400 are set as
follows (see also User Manual 6045.5822.12), otherwise an error message may come up:
 X400.1 and .2: jumper (voltage error)
 X400.3 and .4: no jumper (no input power monitoring)
 X400.5 and .6: jumper (VSWR error)
When selecting the power level, bear in mind that VD 480L can be driven with max. 25 W.
VD 480L
.13
.14
.15
.27
.28
.29
.30
.42
.43
.44
M3SR Transceiver
8MHZ
40MHZ
GND
2MHZ
10MHZ
100MHZ
80MHZ
4MHZ
20MHZ
200MHZ
X27
.1
.2
.3
.4
.5
.6
.17
.18
.19
.20
.21
.33
.34
.35
28V_SW
GND
~BLK
~TX_INHIBIT0
~CARRIER
~FM
GND
~3DB
~ENABLE0
~VSWR
~PTT
UHF
~TX/RX
TEST0
X30
X107
X108
to Antenna
X105
.25
.2
.24
.22
.19
.4
.15
.12
.10
.7
.5
.11
.9
.18
X106
.6
.14
.10
.4
.12
.7
.15
.5
.13
.8